Bubble blowing apparatus



Feb. 26, 1952 J c SCOTT 2,587,537

BUBBLE BLOWING APPARATUS Filed Oct. 21, 1948 i 4'? 10 3/ 5 5/ I 4 6 31 JOSEPH C. Scorr, .31 I N VEN TOR.

ATTORNEY- Patented Feb. 26, 1952 UNITED STATES PATENT OFFICE BUBBLE BLO V I; APPARATUS 7 Application October 21, 1948, Serial No. 55,780

3 Claims.

This invention relates to improvements in a bubble forming. apparatus of a type comprising a manually operated air pump having a reservoir secured thereto and a manually movable wand pivotally secured to the reservoir which may be submerged in a bubble forming solution in the reservoir and when moved out of the bubble forming solution into the path of the nozzle of the manually operated air pump a blast of air from the air pump will pass through the wand and will thus form a plurality of bubbles.

It is an object of this invention to provide a bubble forming apparatus of the type described wherein the reservoir is disposed in OK center relation to the nozzle of the manually operated air pump and to provide a wand which is oscillatably secured to the reservoir on an axis perpendicular to the axis of the manually operated air pump but being bent at right angles in opposite directions adjacent each side of the point at which it is secured to the reservoir, one of the right angularly bent portions extending along the side of the barrel of the air pump for manual operation of the same and the other portion extending away from the nozzle and having a perpendicular looped portion, there being spring means normally urging the wand out of the solution in the reservoir and when the wand is manually moved into the reservoir, it will bear against the bottom of the same, and when released the circular portion of the wand will be urged into alinement with the nozzle by the spring means and, there being a film of the bubble forming solution on the wand, bubbles will thus be formed as the air from the nozzle passes through the same.

Some of the objects of the invention having been stated other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which- Figure 1 is a top plan view of the bubble forming apparatus;

Figure 2 is a side elevation looking up at the lower side of Figure 1;

Figure 3 is an elevation at a reduced scale looking at the opposite side of Figure 2, showing how the device is held in ones hands for operation of the same and showing the wand in a different position;

Figure 4 is a vertical sectional view taken substantially along the line 4-4 in Figusre 1, but showing the wand in different position Figure 5 is an enlarged vertical sectional view of the nozzle shown in Figure 4;

Figure 6 is an end view of the apparatus looking from the left-hand side of Figure 2 to the right.

Referring more specifically to the drawings, the numeral indicates the cylinder of a suitable hand operated compressed air gunor pump and this cylinder is capped at its right-hand and left-hand ends in Figures 1 and 2, as at H and [2 respectively. I 7 I a suitable piston rod ['3 having a handle I4 being engaged by a washer I! and a suitable cup washer 20 being provided between the piston l and the washer I! on the piston rod l3. The left-hand end of the piston rod I3 has a Hut 2! threadably mounted thereon to thus secure the piston l5 and associated parts against the crimped portion iii of the rod l3. The cup washer is mounted for sliding movement within the cylinder l0.

v The restricted portion of the nozzle 26 penetrates the cap I2 and the nozzle 26 is secured, as by welding, to the left-hand surface of the cap 12 in Figure 4. The nozzle 26 also has a restricted threaded portion 21 which slidably penetrates an upwardly extending portion 30 of a reservoir broadly designated at 3|. The restricted threaded portion 2'! of the nozzle 26 has a nut 32 threadab1y mounted thereon for securing the compressed air pump to the portion 30 of the reservoir 3|.

It will be noted in Figure 5 that the nozzle 26 has a bore 29 therein in which a ball 33 has free movement and the bore 29 is restricted atits right-hand end as at 34 to retain the ball 33 in the bore 29. The left-hand end of the restricted threaded portion 21 of the nozzle 26 is crimp'ed as at 35 to thus form minute passageways 36 at the left-hand end of the nozzle 26 through which the compressed air from the ump will escape as the ball 33 is forced against the crimped portion 35. The pump thus described may be purchased in the open market and it is with this pump that this invention is adapted to be a'sso ciated. This will permit the air to spread out over a wider area and will also limit its force and rate of discharge as it escapes from the right-hand end of the nozzle 26 and will also provide for quieter operation of the air pump.

The reservoir 3| has a formed opening 40 therein through which a suitable bubble forming solution 41 (Figure 4') may be poured for filling the reservoir 3|. The formed opening 49 is also provided to permit free passage f the wand, to be later described, therethrough,v A flexible substantially U-shaped member 43 is clampingly secured on the portion 30 of the reservoir and has downwardly extending ears 44 integral therewith which rotatably support a l eral portion 45 of a wand member broadly designated at 46. The wand 46 is bent outwardly at right angles, in Figures 1 and 2, from the laterally bent portion 45 and is then bent upwardly at right angles and is looped as at 41' thus (16-: fining ari opening" 48. v

The wand 46 has extending from the opposlt side of the lateral portion 45 an inwardly and dovvnwardlyand inwardly bent portion 50 forma lever" which is engageable by the hand of an operator (Figure 3). A torsion spring surrounds the laterally bent portion 45 of the wand 46 and one end of the same bears against the right-hand wall of the reservoir 3| in Figure 4 and the other end of the torsion spring 5| extends outwardly and is connected to the forwardly projecting portion of the wand 46. This torsion spring 5| normally urges the wand 45 to the position shown in Figures 1, 2 and 6 and it may be observed in Figures 1, 2 and 3 how the lever 50 of the wand 4-5 is moved by an operator in such a manner as to submerge the free end of the wand in the solution 4| in the reservoir 3|, in which instance, the free end of the wand bears against the bottom of the reservoir 3!, thus restricting its movement in a counterclockwise direction in Figure 4 as well as insuring that the free end of the wand 45 will be completely submerged by the solution 4| although there may be a very limited amount of the solution 4| in the reservoir 3 I.

In operation, it is merely necessary for the operator to grasp the apparatus as shown in Figure 3 and to move the free end of the wand 46 to the position shown in Figures 3 and 4 and upon releasing the wand 45 it will occupy the position shown in Figures 1, 2 and 6 and by pumping the air gun the compressed air will pass from the cylinder l0 through the restricted op ing 34, through the bore 29 in the nozzle and'will pass around the ball 33 and escape through the opening 35 at the left-hand end oi. the nozzle 26 and will thus pass through the opening 48 in the wand to thus dislodge the film of bubble forming solution, which has been deposited over the opening 48 in the wand 45, to thereby form a plurality of bubbles.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. Apparatus for forming bubbles comprising an air pump having a nozzle extending from one end thereof, a bubble solution reservoir supported by said nozzle and having its upper side open, an oscillatable member mounted on the reservoir and having a looped portion extending from one end thereof and having a lever extending from the other end thereof, spring means mounted on the oscillatable member and engaging the reservoir for normally moving the looped portion out of the reservoir with a bubble forming film thereon into the path of air issuing from the nozzle and the lever portion of said oscillatablemember being engageable by the hand of an operator holding the air pump for moving the looped portion into the bubble forming solution in the reservoir, said nozzle having a restricted outer end and a ball check member slidably mounted in said nozzle and prevented from being expelled by the blast of air passing therethrough by the end of the nozzle being restricted, the end of the nozzle having slits therein to allow egress of a controlled amount of air.

2. A bubble forming apparatus comprising an air pump having a nozzle extending from one end thereof, said nozzle being restricted at its outer end and provided with cut-away portions, a ball member slidably mounted in said nozzle and being adapted to be moved to the restricted portion of said nozzle by movement of air outward of the air pump to thus limit the rate of flow of the air from the air pump, a reservoir for holding a bubble forming solution supported by said nozzle and disposed below and in front of said nozzle, an oscillatable wand member pivoted intermediate its ends on the reservoir and having a looped portion on one 'end and a lever portion on the other end, spring means mounted on the wand member and engaging the reservoir for normally moving the oscillatable member to where the looped portion will be disposed in alinement with and at right angles to blasts of air issuing from said nozzle, said lever portion being engageable by the finger of an operators hand holding the air pump for moving the looped portion into the reservoir for depositing a film of bubble forming solution thereon.

3. A bubble forming apparatus comprising an air pump having a nozzle extending from one end thereof, said nozzle being restricted at its outer end and provided with cut-away portions, a ball member slidably mounted in said nozzle and being adapted to be moved to the restricted portion of said nozzle by movement of air from the air pump to thus limit the rate of flow 01 the air from the air pump, a reservoir for holding a bubble forming solution supported by said nozzle and disposed below and in front of said nozzle, an oscillatable wand member pivoted intermediate its ends on the reservoir and having a looped portion on one end and a lever portion on the other end, spring means surrounding a medial portion of the wand member and engaging the reservoir for normally moving the oscillatable member to where the looped portion will be disposed in alinement with and at right angles to blasts of air issuing from said nozzle, said lever portion being engageable by the finger of an operators hand holding the air pump for moving the looped portion into the reservoir for depositing a film of bubble forming solution thereon, the oscillatable wand member being oscillatable on an axis disposed at right angles to the longitudinal axis of the nozzle and having the looped portion disposed in a plane parallel to but spaced from the end of the air pump whereby upon the manual movement of the looped portion into the reservoir the looped portion will occupy a horizontal plane and when allowed to be moved out of the reservoir by the spring means will occupy a vertical plane in front of the nozzle and disposed at right angles to the axis of the air blasts issuing from said nozzle.

JOSEPH C. SCOTT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date D. 155,344 Johanson Sept. 27, 1949 710,814 Steinhauser Oct. '7, 1902 1,031,526 Cloud July 2, 1912 1,232,202 Brown July 3, 191! 1,359,342 Dobbins Nov. 16, 1920 1,397,162 Dobbins Nov. 15, 1921 2,315,242 Briggs et a1 Mar. 30, 1943 2,393,039 Gilchrist Jan. 15, 1946 2,518,627 Lorenz Aug. 15, 1950 FOREIGN PATENTS Number Country Date 329,233 Great Britain May 15, 1930 1,547 Great Britain -3 1913 

